Mice & Trackballs GD13 Pencil with Wirele Charing 30th Pencil for iPad Tablet Stand Case with keyboard for iPad 2 in 1 Bluetooth Mouse Ajustable DPI Switch: 800 /1200 / 1600DPI DUAL MODE BLUETOOTH MOUSE Mode A: Insert the USB receiver into the USB port and switch the mouse switch to 2.4G.Mode B: Switch the mouse switch to Bluetooth, pre the pairing button for 2-3 seconds, the computer Bluetooth will find the mouse and pair it. Three Charging Method Multiple choices, dont worry about low battery Large-capacity rechargeable lithium battery Charging: the blue light on the side of the wheel is always brightCharging completed: the blue light by the wheel goes outNote: the power switch should be turned on when charging Buttons are sensitive, click silent Quieter and Easy to click make you concentrate on your work without disturbing others beside you ,Hold the mouse, it will bring you a comfortable feel. Wide Application All laptops,tablets,mobie phones equipped with Bluetooth Hidden-receiver storage compartment 01-Smooth foot stickers02-Three gear switch adjustment03-microUSB charging port04-High-speed red light engine05-Receiver storage bin Breathing light off/wake up Easy to carry